Good night,
I tried to generated my Fedora Remix of the version 19 of Fedora with latest version of livecd-tools and i got the same error all the time:

Traceback (most recent call last):
File "/usr/bin/livecd-creator", line 237, in <module>
sys.exit(main())
File "/usr/bin/livecd-creator", line 227, in main
logging.error(u"Error creating Live CD : %s" % e)
File "/usr/lib/python2.7/site-packages/imgcreate/errors.py", line 45, in __unicode__
return unicode(self.message)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 62: ordinal not in range(128)

My main kickstart

# kuai.ks
# - Kuai Livecd Spin with the K Desktop Environment (KDE) - version 19

lang pt_BR.UTF-8
keyboard br-abnt2
timezone America/Sao_Paulo
selinux --disabled
services --enabled=NetworkManager --disabled=abrtd,abrt-ccpp,abrt-oops,lvm2-monitor,mdmonitor,network,rsync,sshd,sendmail,tcsd

%include ../ks/fedora/fedora-livecd-kde.ks
%include ../ks/mod/base.ks

%packages --instLangs pt_BR

#Kernel PAE > 4GB ram
-kernel
kernel-PAE

#language
kde-l10n
kde-l10n-Brazil

%end

# base.ks

%packages

#entrada -> į
gtk2-immodules
im-chooser

#fontes
aajohan-comfortaa-fonts

#Samba
fuse-smb
libsmbclient

#Utils
joe
ntp
rdesktop
yum-plugin-fastestmirror

%end

--
Wolnei Junior
Brazil Fedora Ambassador
Linux User #477062